Home / 3,857.29-5,323.07-2,088.90

Finding the Fourth Proportional to 3,857.29, 5,323.07 and 2,088.90

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Solution

The fourth proportional to 3,857.29, 5,323.07 and 2,088.90 is: 2,882.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,857.29 : 5,323.07 = 2,088.90 : x
  2. Step 2: Convert to fraction form
    3,857.29/5,323.07 = 2,088.90/x
  3. Step 3: Cross multiply
    3,857.29x = 5,323.07 × 2,088.90
  4. Step 4: Simplify right side
    3,857.29x = 11,119,366.15
  5. Step 5: Solve for x
    x = 11,119,366.15/3,857.29
  6. Step 6: Final answer
    x = 2,882.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.